JPS542608A - First-ringing control system of time-division exchange - Google Patents

First-ringing control system of time-division exchange

Info

Publication number
JPS542608A
JPS542608A JP6669777A JP6669777A JPS542608A JP S542608 A JPS542608 A JP S542608A JP 6669777 A JP6669777 A JP 6669777A JP 6669777 A JP6669777 A JP 6669777A JP S542608 A JPS542608 A JP S542608A
Authority
JP
Japan
Prior art keywords
time
control system
ringing control
division exchange
division
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6669777A
Other languages
Japanese (ja)
Inventor
Katsuyuki Miyazaki
Akira Horiki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6669777A priority Critical patent/JPS542608A/en
Priority to US05/865,710 priority patent/US4170718A/en
Publication of JPS542608A publication Critical patent/JPS542608A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/02—Calling substations, e.g. by ringing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/06—Time-space-time switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To shorten post-dialing delay economically by providing a first-ringing control circuit for common use.
JP6669777A 1977-06-08 1977-06-08 First-ringing control system of time-division exchange Pending JPS542608A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP6669777A JPS542608A (en) 1977-06-08 1977-06-08 First-ringing control system of time-division exchange
US05/865,710 US4170718A (en) 1977-06-08 1977-12-29 Immediate ring-back control system for time-division telephone exchange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6669777A JPS542608A (en) 1977-06-08 1977-06-08 First-ringing control system of time-division exchange

Publications (1)

Publication Number Publication Date
JPS542608A true JPS542608A (en) 1979-01-10

Family

ID=13323381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6669777A Pending JPS542608A (en) 1977-06-08 1977-06-08 First-ringing control system of time-division exchange

Country Status (2)

Country Link
US (1) US4170718A (en)
JP (1) JPS542608A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6236951A (en) * 1985-08-12 1987-02-17 Oki Electric Ind Co Ltd Call control system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480330A (en) * 1982-11-22 1984-10-30 Gte Automatic Electric Inc. Arrangement for digital tone distribution
US4780716A (en) * 1985-11-01 1988-10-25 Nec Corporation Semiconductor integrated switching apparatus
JP3429666B2 (en) * 1998-03-20 2003-07-22 富士通株式会社 Time slot assignment circuit
US20040027261A1 (en) * 2002-03-15 2004-02-12 Tymchuk Kevin Bruce Centrally synchronized distributed switch
US20070254678A1 (en) * 2006-05-01 2007-11-01 Black Gregory R Devices and methods for ringback control
US20070274271A1 (en) * 2006-05-25 2007-11-29 Motorola, Inc. Wireless communication device having dual transceivers for network pairing with another device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5051204A (en) * 1973-09-05 1975-05-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5051204A (en) * 1973-09-05 1975-05-08

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6236951A (en) * 1985-08-12 1987-02-17 Oki Electric Ind Co Ltd Call control system

Also Published As

Publication number Publication date
US4170718A (en) 1979-10-09

Similar Documents

Publication Publication Date Title
JPS5458540A (en) Threeedimensional operation control system for face model
JPS542608A (en) First-ringing control system of time-division exchange
JPS5459045A (en) Circuit for controlling interrupt to computer system
JPS53141559A (en) Output control circuit
JPS5363905A (en) Selective call communication system
JPS53133860A (en) Robbot control system
EG13354A (en) Distributed control for switching system
JPS53116004A (en) Block system for unit circuit
JPS52112203A (en) Communication circuit control unit
JPS52123812A (en) Register circuit for receiving dial pulse
JPS53108207A (en) Control system for frame synchronous circuit
JPS5365609A (en) Time-division channel system
JPS5389604A (en) Phase ajdustment system
JPS5391611A (en) Mfc signal control system
JPS5465858A (en) Control circuit for refrigerator
JPS549508A (en) Function division system of switchboard control
JPS5353931A (en) Timing control system for memory unit
JPS5227984A (en) Interruption device for remote supervisory control device
JPS5394807A (en) Combined switch network
JPS5437615A (en) Network extension control system
JPS5465859A (en) Control circuit for refrigerator
JPS5387610A (en) Direct exchanging system by channel switching
JPS522112A (en) Periodical pulse counting system
JPS53107206A (en) Time-division control system
JPS53135211A (en) Emergency control corcuit of electronic exchange

Legal Events

Date Code Title Description
A131 Notification of reasons for refusal

Effective date: 20070213

Free format text: JAPANESE INTERMEDIATE CODE: A131

A601 Written request for extension of time

Effective date: 20070511

Free format text: JAPANESE INTERMEDIATE CODE: A601

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20070625

A521 Written amendment

Effective date: 20070608

Free format text: JAPANESE INTERMEDIATE CODE: A523

A131 Notification of reasons for refusal

Effective date: 20070724

Free format text: JAPANESE INTERMEDIATE CODE: A131

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20071015

A01 Written decision to grant a patent or to grant a registration (utility model)

Effective date: 20080122

Free format text: JAPANESE INTERMEDIATE CODE: A01

A045 Written measure of dismissal of application

Free format text: JAPANESE INTERMEDIATE CODE: A045

Effective date: 20080527